Historians are concerned with accuracy of their writings and readings but are also aware of no one being totally accurate, as hard as we try
history being told by one person at a time
biases, perspectives, beliefs, and a variety of other differences
inability of authors to know every angle of every story

inability of authors to know every angle of every story

Explanation:

abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.